Perception of Natural Fluctuations in Peak Flow in Asthma: Clinical Severity and Psychological Correlates

Two methods of defining perception of asthma-related changes in airflow were compared, and relationships to clinical opinions of severity and assessments of psychological functioning were investigated. Perceived breathlessness (VAB) and peak expiratory flow (PEF) were recorded by 100 subjects for 28...

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Bibliographic Details
Published in:The Journal of asthma 1998, Vol.35 (3), p.251-259
Main Authors: Rushford, Nola, Tiller, John W.G., Pain, Michael C.F.
Format: Article
Language:English
Subjects:
Adult
Aged
Anxiety
Anxiety - complications
Anxiety - therapy
Asthma
Asthma - physiopathology
Asthma - psychology
Biological and medical sciences
Breathlessness
Chronic obstructive pulmonary disease, asthma
Depression
Depression - complications
Depression - therapy
Exaggerated perceivers
Humans
Medical sciences
Middle Aged
Peak Expiratory Flow Rate - physiology
Peak flow
Perception
Pneumology
Poor perceivers
Psychology - methods
Psycholological disorders
Referral and Consultation
Respiration - physiology
Self Concept
Severity of Illness Index
Statistics, Nonparametric
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Summary:Two methods of defining perception of asthma-related changes in airflow were compared, and relationships to clinical opinions of severity and assessments of psychological functioning were investigated. Perceived breathlessness (VAB) and peak expiratory flow (PEF) were recorded by 100 subjects for 28 days. Perception was defined by correlation of the two values and by the ratio of maximum change in PEF and related change in VAB. The latter method defined 24 poor perceivers (PP) and 13 exaggerated perceivers (EP), in whom presence of a psychological disorder was high (30% of PP, 54% of EP, compared to 8% of the remainder). Clinical severity in EP was assessed as greater than appeared warranted.
ISSN:0277-0903
1532-4303
DOI:10.3109/02770909809068215